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<h1 class="title">shadereffects.qml 示例文件</h1>
<span class="subtitle">shadereffects/shadereffects.qml</span>
<!-- $$$shadereffects/shadereffects.qml-description -->
<div class="descr"> <a name="details"></a>
<pre class="qml">

  <span class="comment">/****************************************************************************
  **
  ** Copyright (C) 2016 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the QtQuick module of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:BSD$
  ** Commercial License Usage
  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
  ** Software or, alternatively, in accordance with the terms contained in
  ** a written agreement between you and The Qt Company. For licensing terms
  ** and conditions see https://www.qt.io/terms-conditions. For further
  ** information use the contact form at https://www.qt.io/contact-us.
  **
  ** BSD License Usage
  ** Alternatively, you may use this file under the terms of the BSD license
  ** as follows:
  **
  ** &quot;Redistribution and use in source and binary forms, with or without
  ** modification, are permitted provided that the following conditions are
  ** met:
  **   * Redistributions of source code must retain the above copyright
  **     notice, this list of conditions and the following disclaimer.
  **   * Redistributions in binary form must reproduce the above copyright
  **     notice, this list of conditions and the following disclaimer in
  **     the documentation and/or other materials provided with the
  **     distribution.
  **   * Neither the name of The Qt Company Ltd nor the names of its
  **     contributors may be used to endorse or promote products derived
  **     from this software without specific prior written permission.
  **
  **
  ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  ** &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.&quot;
  **
  ** $QT_END_LICENSE$
  **
  ****************************************************************************/</span>

  import QtQuick 2.0
  import QtQml.Models 2.1
  import &quot;content&quot;

  <span class="type"><a href="qml-qtquick-rectangle.html">Rectangle</a></span> {
      <span class="name">id</span>: <span class="name">root</span>
      <span class="name">width</span>: <span class="number">320</span>
      <span class="name">height</span>: <span class="number">480</span>
      property <span class="type"><a href="qml-color.html">color</a></span> <span class="name">col</span>: <span class="string">&quot;lightsteelblue&quot;</span>
      <span class="name">gradient</span>: <span class="name">Gradient</span> {
          <span class="type"><a href="qml-qtquick-gradientstop.html">GradientStop</a></span> { <span class="name">position</span>: <span class="number">0.0</span>; <span class="name">color</span>: <span class="name">Qt</span>.<span class="name">tint</span>(<span class="name">root</span>.<span class="name">col</span>, <span class="string">&quot;#20FFFFFF&quot;</span>) }
          <span class="type"><a href="qml-qtquick-gradientstop.html">GradientStop</a></span> { <span class="name">position</span>: <span class="number">0.1</span>; <span class="name">color</span>: <span class="name">Qt</span>.<span class="name">tint</span>(<span class="name">root</span>.<span class="name">col</span>, <span class="string">&quot;#20AAAAAA&quot;</span>) }
          <span class="type"><a href="qml-qtquick-gradientstop.html">GradientStop</a></span> { <span class="name">position</span>: <span class="number">0.9</span>; <span class="name">color</span>: <span class="name">Qt</span>.<span class="name">tint</span>(<span class="name">root</span>.<span class="name">col</span>, <span class="string">&quot;#20666666&quot;</span>) }
          <span class="type"><a href="qml-qtquick-gradientstop.html">GradientStop</a></span> { <span class="name">position</span>: <span class="number">1.0</span>; <span class="name">color</span>: <span class="name">Qt</span>.<span class="name">tint</span>(<span class="name">root</span>.<span class="name">col</span>, <span class="string">&quot;#20000000&quot;</span>) }
      }

      <span class="type"><a href="qml-qtquick-shadereffectsource.html">ShaderEffectSource</a></span> {
          <span class="name">id</span>: <span class="name">theSource</span>
          <span class="name">sourceItem</span>: <span class="name">theItem</span>
      }

      <span class="keyword">function</span> <span class="name">saturate</span>(<span class="name">x</span>) {
          <span class="keyword">return</span> <span class="name">Math</span>.<span class="name">min</span>(<span class="name">Math</span>.<span class="name">max</span>(<span class="name">x</span>, <span class="number">0</span>), <span class="number">1</span>)
      }

      <span class="keyword">function</span> <span class="name">sliderToColor</span>(<span class="name">x</span>) {
          <span class="keyword">return</span> <span class="name">Qt</span>.<span class="name">rgba</span>(<span class="name">saturate</span>(<span class="name">Math</span>.<span class="name">max</span>(<span class="number">2</span> <span class="operator">-</span> <span class="number">6</span> <span class="operator">*</span> <span class="name">x</span>, <span class="number">6</span> <span class="operator">*</span> <span class="name">x</span> <span class="operator">-</span> <span class="number">4</span>)),
                          <span class="name">saturate</span>(<span class="name">Math</span>.<span class="name">min</span>(<span class="number">6</span> <span class="operator">*</span> <span class="name">x</span>, <span class="number">4</span> <span class="operator">-</span> <span class="number">6</span> <span class="operator">*</span> <span class="name">x</span>)),
                          <span class="name">saturate</span>(<span class="name">Math</span>.<span class="name">min</span>(<span class="number">6</span> <span class="operator">*</span> <span class="name">x</span> <span class="operator">-</span> <span class="number">2</span>, <span class="number">6</span> <span class="operator">-</span> <span class="number">6</span> <span class="operator">*</span> <span class="name">x</span>)))
      }

      <span class="type"><a href="qml-qtquick-grid.html">Grid</a></span> {
          <span class="name">anchors</span>.centerIn: <span class="name">parent</span>
          <span class="name">columns</span>: <span class="number">2</span>

          <span class="type"><a href="qml-qtquick-item.html">Item</a></span> {
              <span class="name">id</span>: <span class="name">theItem</span>
              <span class="name">width</span>: <span class="number">160</span>
              <span class="name">height</span>: <span class="number">160</span>
              <span class="type"><a href="qml-qtquick-listview.html">ListView</a></span> {
                  <span class="name">anchors</span>.centerIn: <span class="name">parent</span>
                  <span class="name">width</span>: <span class="number">160</span>
                  <span class="name">height</span>: <span class="number">140</span>
                  <span class="name">clip</span>: <span class="number">true</span>
                  <span class="name">snapMode</span>: <span class="name">ListView</span>.<span class="name">SnapOneItem</span>
                  <span class="name">model</span>: <span class="name">ObjectModel</span> {
                      <span class="type"><a href="qml-qtquick-text.html">Text</a></span> {
                          <span class="name">width</span>: <span class="number">160</span>
                          <span class="name">height</span>: <span class="number">140</span>
                          <span class="name">horizontalAlignment</span>: <span class="name">Text</span>.<span class="name">AlignHCenter</span>
                          <span class="name">verticalAlignment</span>: <span class="name">Text</span>.<span class="name">AlignVCenter</span>
                          <span class="name">font</span>.pixelSize: <span class="number">118</span>
                          <span class="name">font</span>.family: <span class="string">&quot;Times&quot;</span>
                          <span class="name">color</span>: <span class="string">&quot;blue&quot;</span>
                          <span class="name">text</span>: <span class="string">&quot;Qt&quot;</span>
                      }
                      <span class="type"><a href="qml-qtquick-image.html">Image</a></span> {
                          <span class="name">width</span>: <span class="number">160</span>
                          <span class="name">height</span>: <span class="number">140</span>
                          <span class="name">source</span>: <span class="string">&quot;content/qt-logo.png&quot;</span>
                      }
                      <span class="type"><a href="qml-qtquick-image.html">Image</a></span> {
                          <span class="name">width</span>: <span class="number">160</span>
                          <span class="name">height</span>: <span class="number">140</span>
                          <span class="name">source</span>: <span class="string">&quot;content/face-smile.png&quot;</span>
                      }
                  }
              }
          }
          <span class="type"><a href="qml-qtquick-shadereffect.html">ShaderEffect</a></span> {
              <span class="name">width</span>: <span class="number">160</span>
              <span class="name">height</span>: <span class="number">160</span>
              property <span class="type"><a href="../qtqml/qml-variant.html">variant</a></span> <span class="name">source</span>: <span class="name">theSource</span>
              property <span class="type"><a href="../qtqml/qml-real.html">real</a></span> <span class="name">amplitude</span>: <span class="number">0.04</span> <span class="operator">*</span> <span class="name">wobbleSlider</span>.<span class="name">value</span>
              property <span class="type"><a href="../qtqml/qml-real.html">real</a></span> <span class="name">frequency</span>: <span class="number">20</span>
              property <span class="type"><a href="../qtqml/qml-real.html">real</a></span> <span class="name">time</span>: <span class="number">0</span>
              NumberAnimation on <span class="name">time</span> { <span class="name">loops</span>: <span class="name">Animation</span>.<span class="name">Infinite</span>; <span class="name">from</span>: <span class="number">0</span>; <span class="name">to</span>: <span class="name">Math</span>.<span class="name">PI</span> <span class="operator">*</span> <span class="number">2</span>; <span class="name">duration</span>: <span class="number">600</span> }
              <span class="name">fragmentShader</span>: <span class="string">&quot;qrc:shadereffects/content/shaders/wobble.frag&quot;</span>
              <span class="type"><a href="../qtquickcontrols/qml-qtquick-controls-slider.html">Slider</a></span> {
                  <span class="name">id</span>: <span class="name">wobbleSlider</span>
                  <span class="name">anchors</span>.left: <span class="name">parent</span>.<span class="name">left</span>
                  <span class="name">anchors</span>.right: <span class="name">parent</span>.<span class="name">right</span>
                  <span class="name">anchors</span>.bottom: <span class="name">parent</span>.<span class="name">bottom</span>
                  <span class="name">height</span>: <span class="number">40</span>
              }
          }
          <span class="type"><a href="qml-qtquick-shadereffect.html">ShaderEffect</a></span> {
              <span class="name">width</span>: <span class="number">160</span>
              <span class="name">height</span>: <span class="number">160</span>
              property <span class="type"><a href="../qtqml/qml-variant.html">variant</a></span> <span class="name">source</span>: <span class="name">theSource</span>
              property <span class="type"><a href="../qtqml/qml-variant.html">variant</a></span> <span class="name">shadow</span>: <span class="name">ShaderEffectSource</span> {
                  <span class="name">sourceItem</span>: <span class="name">ShaderEffect</span> {
                      <span class="name">width</span>: <span class="name">theItem</span>.<span class="name">width</span>
                      <span class="name">height</span>: <span class="name">theItem</span>.<span class="name">height</span>
                      property <span class="type"><a href="../qtqml/qml-variant.html">variant</a></span> <span class="name">delta</span>: <span class="name">Qt</span>.<span class="name">size</span>(<span class="number">0.0</span>, <span class="number">1.0</span> <span class="operator">/</span> <span class="name">height</span>)
                      property <span class="type"><a href="../qtqml/qml-variant.html">variant</a></span> <span class="name">source</span>: <span class="name">ShaderEffectSource</span> {
                          <span class="name">sourceItem</span>: <span class="name">ShaderEffect</span> {
                              <span class="name">width</span>: <span class="name">theItem</span>.<span class="name">width</span>
                              <span class="name">height</span>: <span class="name">theItem</span>.<span class="name">height</span>
                              property <span class="type"><a href="../qtqml/qml-variant.html">variant</a></span> <span class="name">delta</span>: <span class="name">Qt</span>.<span class="name">size</span>(<span class="number">1.0</span> <span class="operator">/</span> <span class="name">width</span>, <span class="number">0.0</span>)
                              property <span class="type"><a href="../qtqml/qml-variant.html">variant</a></span> <span class="name">source</span>: <span class="name">theSource</span>
                              <span class="name">fragmentShader</span>: <span class="string">&quot;qrc:shadereffects/content/shaders/blur.frag&quot;</span>
                          }
                      }
                      <span class="name">fragmentShader</span>: <span class="string">&quot;qrc:shadereffects/content/shaders/blur.frag&quot;</span>
                  }
              }
              property <span class="type"><a href="../qtqml/qml-real.html">real</a></span> <span class="name">angle</span>: <span class="number">0</span>
              property <span class="type"><a href="../qtqml/qml-variant.html">variant</a></span> <span class="name">offset</span>: <span class="name">Qt</span>.<span class="name">point</span>(<span class="number">15.0</span> <span class="operator">*</span> <span class="name">Math</span>.<span class="name">cos</span>(<span class="name">angle</span>), <span class="number">15.0</span> <span class="operator">*</span> <span class="name">Math</span>.<span class="name">sin</span>(<span class="name">angle</span>))
              NumberAnimation on <span class="name">angle</span> { <span class="name">loops</span>: <span class="name">Animation</span>.<span class="name">Infinite</span>; <span class="name">from</span>: <span class="number">0</span>; <span class="name">to</span>: <span class="name">Math</span>.<span class="name">PI</span> <span class="operator">*</span> <span class="number">2</span>; <span class="name">duration</span>: <span class="number">6000</span> }
              property <span class="type"><a href="../qtqml/qml-variant.html">variant</a></span> <span class="name">delta</span>: <span class="name">Qt</span>.<span class="name">size</span>(<span class="name">offset</span>.<span class="name">x</span> <span class="operator">/</span> <span class="name">width</span>, <span class="name">offset</span>.<span class="name">y</span> <span class="operator">/</span> <span class="name">height</span>)
              property <span class="type"><a href="../qtqml/qml-real.html">real</a></span> <span class="name">darkness</span>: <span class="name">shadowSlider</span>.<span class="name">value</span>
              <span class="name">fragmentShader</span>: <span class="string">&quot;qrc:shadereffects/content/shaders/shadow.frag&quot;</span>
              <span class="type"><a href="../qtquickcontrols/qml-qtquick-controls-slider.html">Slider</a></span> {
                  <span class="name">id</span>: <span class="name">shadowSlider</span>
                  <span class="name">anchors</span>.left: <span class="name">parent</span>.<span class="name">left</span>
                  <span class="name">anchors</span>.right: <span class="name">parent</span>.<span class="name">right</span>
                  <span class="name">anchors</span>.bottom: <span class="name">parent</span>.<span class="name">bottom</span>
                  <span class="name">height</span>: <span class="number">40</span>
              }
          }
          <span class="type"><a href="qml-qtquick-shadereffect.html">ShaderEffect</a></span> {
              <span class="name">width</span>: <span class="number">160</span>
              <span class="name">height</span>: <span class="number">160</span>
              property <span class="type"><a href="../qtqml/qml-variant.html">variant</a></span> <span class="name">source</span>: <span class="name">theSource</span>
              property <span class="type"><a href="../qtqml/qml-variant.html">variant</a></span> <span class="name">delta</span>: <span class="name">Qt</span>.<span class="name">size</span>(<span class="number">0.5</span> <span class="operator">/</span> <span class="name">width</span>, <span class="number">0.5</span> <span class="operator">/</span> <span class="name">height</span>)
              <span class="name">fragmentShader</span>: <span class="string">&quot;qrc:shadereffects/content/shaders/outline.frag&quot;</span>
          }
          <span class="type"><a href="qml-qtquick-shadereffect.html">ShaderEffect</a></span> {
              <span class="name">width</span>: <span class="number">160</span>
              <span class="name">height</span>: <span class="number">160</span>
              property <span class="type"><a href="../qtqml/qml-variant.html">variant</a></span> <span class="name">source</span>: <span class="name">theSource</span>
              property <span class="type"><a href="qml-color.html">color</a></span> <span class="name">tint</span>: <span class="name">root</span>.<span class="name">sliderToColor</span>(<span class="name">colorizeSlider</span>.<span class="name">value</span>)
              <span class="name">fragmentShader</span>: <span class="string">&quot;qrc:shadereffects/content/shaders/colorize.frag&quot;</span>
              <span class="type"><a href="../qtquickcontrols/qml-qtquick-controls-slider.html">Slider</a></span> {
                  <span class="name">id</span>: <span class="name">colorizeSlider</span>
                  <span class="name">anchors</span>.left: <span class="name">parent</span>.<span class="name">left</span>
                  <span class="name">anchors</span>.right: <span class="name">parent</span>.<span class="name">right</span>
                  <span class="name">anchors</span>.bottom: <span class="name">parent</span>.<span class="name">bottom</span>
                  <span class="name">height</span>: <span class="number">40</span>
              }
          }
          <span class="type"><a href="qml-qtquick-shadereffect.html">ShaderEffect</a></span> {
              <span class="name">width</span>: <span class="number">160</span>
              <span class="name">height</span>: <span class="number">160</span>
              property <span class="type"><a href="../qtqml/qml-variant.html">variant</a></span> <span class="name">source</span>: <span class="name">theSource</span>
              property <span class="type"><a href="../qtqml/qml-real.html">real</a></span> <span class="name">bend</span>: <span class="number">0</span>
              property <span class="type"><a href="../qtqml/qml-real.html">real</a></span> <span class="name">minimize</span>: <span class="number">0</span>
              property <span class="type"><a href="../qtqml/qml-real.html">real</a></span> <span class="name">side</span>: <span class="name">genieSlider</span>.<span class="name">value</span>
              SequentialAnimation on <span class="name">bend</span> {
                  <span class="name">loops</span>: <span class="name">Animation</span>.<span class="name">Infinite</span>
                  <span class="type"><a href="qml-qtquick-numberanimation.html">NumberAnimation</a></span> { <span class="name">to</span>: <span class="number">1</span>; <span class="name">duration</span>: <span class="number">700</span>; <span class="name">easing</span>.type: <span class="name">Easing</span>.<span class="name">InOutSine</span> }
                  <span class="type"><a href="qml-qtquick-pauseanimation.html">PauseAnimation</a></span> { <span class="name">duration</span>: <span class="number">1600</span> }
                  <span class="type"><a href="qml-qtquick-numberanimation.html">NumberAnimation</a></span> { <span class="name">to</span>: <span class="number">0</span>; <span class="name">duration</span>: <span class="number">700</span>; <span class="name">easing</span>.type: <span class="name">Easing</span>.<span class="name">InOutSine</span> }
                  <span class="type"><a href="qml-qtquick-pauseanimation.html">PauseAnimation</a></span> { <span class="name">duration</span>: <span class="number">1000</span> }
              }
              SequentialAnimation on <span class="name">minimize</span> {
                  <span class="name">loops</span>: <span class="name">Animation</span>.<span class="name">Infinite</span>
                  <span class="type"><a href="qml-qtquick-pauseanimation.html">PauseAnimation</a></span> { <span class="name">duration</span>: <span class="number">300</span> }
                  <span class="type"><a href="qml-qtquick-numberanimation.html">NumberAnimation</a></span> { <span class="name">to</span>: <span class="number">1</span>; <span class="name">duration</span>: <span class="number">700</span>; <span class="name">easing</span>.type: <span class="name">Easing</span>.<span class="name">InOutSine</span> }
                  <span class="type"><a href="qml-qtquick-pauseanimation.html">PauseAnimation</a></span> { <span class="name">duration</span>: <span class="number">1000</span> }
                  <span class="type"><a href="qml-qtquick-numberanimation.html">NumberAnimation</a></span> { <span class="name">to</span>: <span class="number">0</span>; <span class="name">duration</span>: <span class="number">700</span>; <span class="name">easing</span>.type: <span class="name">Easing</span>.<span class="name">InOutSine</span> }
                  <span class="type"><a href="qml-qtquick-pauseanimation.html">PauseAnimation</a></span> { <span class="name">duration</span>: <span class="number">1300</span> }
              }
              <span class="name">mesh</span>: <span class="name">Qt</span>.<span class="name">size</span>(<span class="number">10</span>, <span class="number">10</span>)
              <span class="name">vertexShader</span>: <span class="string">&quot;qrc:shadereffects/content/shaders/genie.vert&quot;</span>
              <span class="type"><a href="../qtquickcontrols/qml-qtquick-controls-slider.html">Slider</a></span> {
                  <span class="name">id</span>: <span class="name">genieSlider</span>
                  <span class="name">anchors</span>.left: <span class="name">parent</span>.<span class="name">left</span>
                  <span class="name">anchors</span>.right: <span class="name">parent</span>.<span class="name">right</span>
                  <span class="name">anchors</span>.bottom: <span class="name">parent</span>.<span class="name">bottom</span>
                  <span class="name">height</span>: <span class="number">40</span>
              }
          }
      }
  }

</pre>
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